Income Taxes - Components of Loss Before Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
United States	$ (239,855)	$ (362,338)	$ (94,718)
International	607	40	0
Loss before income taxes	$ (239,248)	$ (362,298)	$ (94,718)

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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+ Details